KITO ER2 Series User manual

OM-ER2ZZZ-KCE-00

2
Introduction
This electric chain hoist ER2 is designed and manufactured for the purpose to lift and lower a load within a normal
work environment. The motorized trolley MR2 and the manual trolley are designed and manufactured for the purpose
to move the lifted load laterally with the combination with the electric chain hoist.
Movement of a load in a 3D direction such as up/down, forward/backward and right/left is also enabled by combining
with a crane.
This Owner's Manual is intended for those operating the KITO electric chain hoist ER2 and maintenance engineers
(* pesonnel with expertise).
Other than this manual, Disassembly/Reassembly Manual and Parts List are also available for the maintenance
engineers. Assign the maintenance engineers and use these materials for inspection and repair. Please contact the
nearest distributor or KITO for these materials.
*Personnel having expertise in the structure and mechanism of electric chain hoists and being determined to be
eligible for that by the business entity.
Table of Contents
■Disclaimer
●KITO shall not be liable for any damage incurred thereof due to natural disaster such as fire, earth quake and
thunderbolt, conduct by third party, accident, willful conduct or negligence by customer, erroneous use and
other use exceeding the operational condition.
●KITO shall not be liable for any incidental damage due to the use or non-use of the product such as the loss of
business profit, suspension of business and damage of the lifted load.
●KITO shall not be liable for any damage arising from negligence of the contents in the Owner's Manual and the
use of the product exceeding the scope of its specification.
●KITO shall not be liable for any damage arising from the malfunction due to the combination of the product with
other devices in which KITO is not concerned.
●KITO shall not be liable to supply the spare parts for the product for which it has passed for 15 years since the
discontinue of the product.
Introduction............................................................................................2
Safety Precautions ................................................................................4
Chapter 1 Handling the Product..........................................................7
Chapter 2 Inspection..........................................................................63
Chapter 3 Troubleshooting................................................................95
Appendix ............................................................................................121
Warranty .............................................................................................150

3
■Restriction on Use
●The product described herein is not designed or manufactured for transporting people. Do not use the product
for that purpose.
●The product described herein is designed for the materials handling work such as lifting/lowering and traveling
the load under ordinary operational condition. Do not use the product for the work other than materials handling
work.
●Do not assemble the product into machinery not for materials handling, as a part of it.
■Operators
●Read carefully this Owner’s Manual and the instruction manuals of related products, fully understand their
contents, and the use and operate the product.
●Be sure to wear the proper clothing and protective equipment when using and operating the product.

4
■General Matters on Handling and Control
•This product shall not be disassembled and repaired by personnel other than maintenance engineers.
Other than this manual, Disassembly/Assembly Manual and Parts List are provided for the maintenance engineers.
Perform the disassembling and repair by the maintenance engineer in accordance with these materials for maintenance.
•Do not modify the product and its accessories.
Failure to comply with these instructions may result in death or serious injury.
Prohibited
Mandatory
•Understand the contents of the Owner’s Manual sufficiently. Then operate the Electric chain hoist.
•Connect properly according to the “Canadian Electrical Code (CEC) Part 1”.
•Warning label is affixed to each part of the product. Follow the instruction described in the warning label.
Failure to comply with these instructions may result in death or serious injury.
Safety Precautions
Improper use of electric chain hoist causes danger such as drop of lifted load. Read this Owner’s Manual
carefully before installation, operation and maintenance. Use the product after understanding the product
knowledge, safety information and precautions.
This Owner’s Manual classifies the safety information and precautions into three categories of “DANGER”
“WARNING” and “CAUTION”.
Also read the instruction manual of the device associated with electric chain hoist, and follow the described
contents.
Description of Safety Symbols
Means “Prohibited” or “You must not do”.
Prohibited action is shown in the circle or described near the circle.
This Owner’s Manual uses as the general prohibition.
Means “Mandatory Action” or “You must do”.
Required action is shown in the circle or described near the circle.
This Owner’s Manual uses as the general instruction.
Further, the event described in CAUTION may result in serious accident depending on the situation. All three categories describe important
contents. Please follow the instruction.
After reading, please keep this manual at hand for future use by the user.
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Description of Signal Words
WARNING
DANGER
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices.
Prohibited
Mandatory
DANGER

5
CAUTION
•Do not drag or drop the product when carrying.
Otherwise it causes damage or flaw of the electric chain hoist, bodily injury or loss of property due to the drop of the lifted
load.
Prohibited
Mandatory
•When discarding the product, disassemble it not to be used and discard in accordance with the ordinances of
local government or the rules specified by the business entity.
Ask the local government or the relevant section for the details.
Refer to “Disassembly/Assembly Manual” for disassembling, or contact KITO.
(This product uses oil. We prepare SDS (Safety Data Sheet) for the oil. Contact KITO for it.)
•Carry out daily inspection by user.
•Carry out inspection (monthly, annual) by maintenance engineer.
•Keep the record of the inspection.
Failure to comply with these instructions causes bodily injury or loss of property.
■General Matters on Handling of Dual Speed VFD Model
The dual speed VFD model electric chain hoist is controlled by VFD for important items related to safety such as
operation, braking and emergency stop. Be sure to follow the safety precautions below as well as the above safety
precautions.
•Do not change parameters.
When parameters need to be changed, ask distributor or KITO.
•Do not carry out the work such as maintenance and inspection within 5 minutes after power off.
Wait for the completion of discharging of the capacitor inside the VFD.
•Do not touch the controller cover as it becomes hot during operation.
Do not touch the controller cover until about 30 minutes elapsed after the stop of operation.
•USE KITO genuine VFD.
The VFD requires the special specification for KITO. Be sure to use genuine VFD.
•Do not change the connection of the VFD.
When the wires were removed for any reason, connect them again correctly checking the wiring diagram inside the
controller cover.
•Do not carry out withstand voltage test and insulation resistance measurement of a circuit by megger while the
VFD is connected.
•Do not turn off the power while operating.
Failure to comply with these instructions may result in death or serious injury and the damage of VFD.
Prohibited
DANGER

6

7
Chapter 1
Handling the Product
This chapter describes mainly how to use, assemble and install, and the check after
installation. It also describes the daily inspection items before use.
●For Operators and Maintenance Engineers
Type and Names of Each Part ..........................................................8
Opening the Package ......................................................................11
Product Specication and Operational Environment ..................16
How to Use ......................................................................................19
●How to Operate the Push Button Switches
..................................20
●Operation......................................................................................23
●Speed Change of Dual Speed VFD Model .................................26
●How to Sling the Load Properly .................................................26
●How to Suppress the Swinging of a Load .................................26
●Precautions After Work ...............................................................27
Daily Inspection ..............................................................................28
●Electric Chain Hoist
.......................................................................28
●Motorized Trolley .........................................................................33
●Manual Trolley..............................................................................34
●For Maintenance Engineers and Installars
Work Flow of Assembling and Installation....................................36
Assembling ......................................................................................37
●Assembling Parts to Electric Chain Hoist .................................37
●Combination with the Trolley......................................................41
●Checking Power and Power Cable.............................................52
●Connecting Cables ......................................................................54
Installation........................................................................................57
●Connecting Power and Power cable..........................................57
●Installing the Hook suspended Type (hoist only).........................57
●Installing the Trolley Combined Model.......................................58
Check after Installation ...................................................................61

8
Chapter 2 Inspection
1
Type and Names of Each Part
Mandatory
•Warning labels are affixed to each part other than above. Be sure to follow the instructions in the label.
Failure to comply with the contents of the label may result in death or serious injury.
■Hook Suspended Type (ER2)
●Electric chain hoist dedicated for elevation
Chain Container
Electric Chain hoist
name plate
Top Hook
Push Button
Switch Cord
Warning Tag
Load Chain
Cushion Rubber
(Chain spring and end plate for the
model of rated load 2 t or more)
Body
Bottom Yoke
Hook Latch
Bottom Hook
Push Button Switch
Type and Names of Each PartHook Suspended Type (ER2)
DANGER

9
1
Relay Cable
Chain Container
Cushion Rubber
(Chain spring and end plate for the
model of rated load of 2 t or more)
Bottom Hook
Load Chain
Electric chain hoist
nameplate
Connection Box
Motorized trolley
Cable Support Bar
Push Button
Switch Cord
Hook latch
Power Cable
Push Button Switch
Warning Tag
Bottom Yoke
■Motorized Trolley Type (ER2M)
●Electric Chain Hoist combined with motorized trolley (MR2) for elevation and traveling motion
Type and Names of Each Part Motorized Trolley Type (ER2M)
(to be continued)
Mandatory
•Warning labels are affixed to each part other than above. Be sure to follow the instructions in the label.
Failure to comply with the contents of the label can result in serious bodily injury or death.
DANGER

10
Chapter 2 Inspection
1
■Manual Trolley Type (ER2SG/ER2SP)
●ER2SG : The electric chain hoist equipped with the geared trolley (TSG) enabling fine adjustable
lateral motion of the load by pulling the hand chain.
●ER2SP : The electric chain hoist equipped with the plain trolley (TSP) enabling lateral motion by moving the load
manually. For light work.
Type and Names of Each Part (continued)
Chain Container
Electric chain hoist
nameplate
Push Button Switch Cord
Warning Tag
Load Chain
Cushion Rubber
(Chain Spring and End Plate for the
model of rated load 2 t or more)
Hand Chain
Bottom Yoke
Hook Latch
Bottom Hook
Push Button Switch
Geard Trolley (TSG)
Bumper
Hand Wheel Nameplate
Plain Trolley (TSP)
Bumper
Type and Names of Each PartManual Trolley Type (ER2SG/ER2SP)
Mandatory
•Warning labels are affixed to each part other than above. Be sure to follow the instructions in the label.
Failure to comply with the contents of the label can result in serious bodily injury or death.
DANGER

11
1
Opening the Package
■Checking the Product
●Make sure that the indication on the package and the product coincide with your order.
●Make sure that the product is not deformed and damaged due to the accident during transportation.
■Packaging
■Packaging
For the customer's convenience, the main parts of our product are packaged individually and delivered.
Trolley packaging
TSP Plain Trolley
TSG Geared Trolley
Model MR2
Motorized Trolley
5-Push
Button
Switch set Power
Cable
* Power Cable longer than 10 m is available as an optional part.
3-Push
Button
Switch set
Equipped with
Top Hook
Equipped with
Connection Yoke
Equipped with
Suspender
Hook Suspended
Model
Plain Trolley
Combined Model
Geared Trolley
Combined Model
Motorized Trolley
Type
Power
Cable set
Accessory set
Electric chain hoist main
unit packaging
Option
Applicable model
ER2
ER2SP,
ER2SG
ER2M
■Parts packaged with the Electric Chain Hoist
Plastic or canvas
Chain Container Owner's Manual Load Chain
Grease Tube
Connection yoke rubber
for TSG (1t only)
Opening the Package Checking the Product / Packaging
(to be continued)
Note: End suspender is attached if Chain Container is not ordered. (Excludes double chain type)

12
Chapter 2 Inspection
1
Opening the Package (continued)
■Nameplate and Product Model
■Nameplate Indication of Electric Chain Hoist
Capacity Body
CODE
Single speed model Dual speed model
Standard speed Low speed Standard speed Low speed
125kg ER2-B — (ER2-001H)* — (ER2-001IH/HD)*
250kg ER2-003S — ER2-003IS/SD —
500kg ER2-C ER2-005S ER2-005L ER2-005IS/SD ER2-005IL/LD
1t ER2-D ER2-010S ER2-010L ER2-010IS/SD ER2-010IL/LD
1.5t ER2-E ER2-015S — ER2-015IS/SD —
2t ER2-E ER2-020S ER2-020L ER2-020IS/SD ER2-020IL/LD
2.5t ER2-F ER2-025S — ER2-025IS/SD —
3t ER2-E ER2-030S — ER2-030IS/SD —
5t ER2-F ER2-050S — ER2-050IS/SD —
* High Speed Type
1 · · · Capacity Ex. 1t, 500kg
The maximum mass of the load that can be
imposed on the product. The mass of the hook is
excluded.
2 CODE…Product model Ex. ER2-005S
A code to indicate the model No. of the product,
capacity and lifting speed.
3 SERIAL No.
Serial number to indicate the manufacturing sequence
of the product.
4 Rated Voltage
5 Number of Phase
6 Frequency
7 Hoist motor output
8 Rated hoist motor current
9 Trolley motor output
10 Rated trolley motor current
11 SCCR (Short circuit current rating)
■Code of ER2
Opening the PackageNameplate and Product Model

13
1
Capacity
CODE
Single speed model Dual speed model
Standard speed Low speed Standard speed
125kg
MR2-010S MR2-010L MR2-010IS/SD
250kg
500kg
1t
1.5t MR2-020S MR2-020L MR2-020IS/SD
2t
2.5t MR2-030S MR2-030L MR2-030IS/SD
3t
5t MR2-050S MR2-050L MR2-050IS/SD
Opening the Package Nameplate and Product Model
(to be continued)
■Code of MR2

14
Chapter 2 Inspection
1
Opening the Package (continued)
■Nameplate Indication of Manual Trolley
1 · · · Capacity Ex. 1t, 500kg
The maximum mass of the load that can be imposed on the
product. The mass of the hook is excluded.
2 LOT No.
Manufacture No. to identify the time of manufacture and the
production lot.
3 SERIAL No.
Serial number to indicate the manufacturing sequence of the
product.
1
2
3
Opening the PackageNameplate and Product Model

15
1
■Checking the Marks
Code Load Chain size :
diameter (mm) Mark Mark pitch
ER2-001H/IH/HD
4.3 FT-DAT 24 Links
ER2-003S/IS/SD
ER2-005L/IL/LD
6.0
RH-DAT
20 Links
ER2-005S/IS/SD
ER2-010L/IL/LD
7.7
ER2-010S/IS/SD
ER2-015S/IS/SD
10.2 16 Links ER2-020L/IL/LD
ER2-020S/IS/SD
ER2-025S/IS/SD 11.2 12 Links
ER2-030S/IS/SD 10.2 16 Links
ER2-050S/IS/SD 11.2 12 Links
RH-DAT 0000 RH-DAT
Mark pitch
First markSecond mark Second mark
Front side : RH-DAT
Back side : H23
Front side : Original Lot No. of the
Load Chain (4 digits)
Back side : KITO
FT-DAT
or
•Be sure to check that the Load Chain has 'RH-DAT' or 'FT-DAT' mark on it and the chain size is appropriate for the
ER2 model you are using (See the following table.). The Load Chain of other models (such as model ES or ER) or
different rating cannot be used.
Use of the Load Chain of other model or other rating may result in death or serious injury due to the drop of the lifted load.
Mandatory
The mark (RH-DAT) to indicate the model of the Load
Chain is indicated on it at an equal spacing. Make sure
that the Load Chain is of a chain size (wire diameter)
appropriate for ER2 referring to the table in the left.
■Recording the Initial Value
●When opening the package, fill in
the table in the right with the opening
dimension "a" between embossed marks
on the Bottom Hook, the width of the
hook "b" and the thickness of the hook
"c". (These values are used for checking.
Record the value for the top hook of ER2
when it is used individually.)
Dimensions when the package was opened
b
c
a
Embossed marks
Top Hook
(For ER2 only)
Dimension a mm
Dimension b mm
Dimension c mm
Bottom Hook
Dimension a mm
Dimension b mm
Dimension c mm
■Recording the Product No.
●Fill in the table in the right with product's
Lot No., Serial No. (described in the
product nameplate), date of purchase and
the name of the sales shop where you
purchased the product.
* When requesting repair or ordering a
chain hoist part, please inform us of
these pieces of information together.
Opening the Package Checking the Marks / Recording the Product No. / Recording the Initial Value
DANGER
Item Electric chain hoist Motorized trolley Manual trolley
Lot No.
Serial No.
Date of purchase
Name of the sales shop

16
Chapter 2 Inspection
1
Product Specification and Operational Environment
■Standard Specification
Short time ratings :ER2 series(Capacity 100 %) : Single speed model — 60 min.
Dual speed VFD model (high speed/low speed) — 30/10 min.
:MR2 series(Capacity 100 %) : Single speed model — 30 min.
Dual speed VFD model (high speed/low speed) — 30/10 min.
Intermittent ratings :ER2 series(63 % of the capacity) : Single speed model — 60 % ED (at 360 rev/h)
Dual speed VFD model (high speed/low speed) — 40/20 % ED
(120/240 rev/h)
:MR2 series(63 % of the capacity) : Single speed model — 40 % ED (at 240 rev/h)
Dual speed VFD model (high speed/low speed) — 27/13 % ED (78/162
rev/h)
Grade *1 :ISO-M6, M5 or M4, FEM-3m, 2m or 1Am, ASME-H4
Protection :Hoist IP55, Push button IP65
Operation Push button switch operation / 3-Push Button Switch set for hoist only and Manual trolley type / 5-Push
Button Switch set for motorized trolley combined model
Power supply method....Power supply through cabtyre cable
Color...............................KITO Yellow (Equivalent to Munsell 7.2YR6.5/14.5)
Noise level :ER2, single speed 75dB or less (A scale: measured at 1 m away from the Electric chain hoist)
:ER2, dual speed VFD model 80dB or less (A scale: measured at 1 m away from the Electric chain hoist)
:MR2 85dB or less (A scale: measured at 1 m away from the Electric chain hoist)
Braking capacity :150% of the capacity or more
Other...............................Power Cable length 5 m/10 m (Standard)
NOTE
•Operate the electric chain hoist with the rated voltage.
•Do not use the electric chain hoist exceeding the short time ratings and the intermittent ratings.
•Suitable for use on a circuit capable of delivering not more than 5kA RMS symmetrical amperes, 575V maximum. (SCCR 5kA)
The operational environment of the electric chain hoist and motorized trolley is as follows:
Product Specication and Operational Environment
Standard Specication
Product category Motor Insulation
Class
Voltage range Operating
Voltage
50Hz 60Hz
220/440V Class
(230/460V Class) B208-230V
110V
(110V~121V)
415-460V
500V Class B 500V 575V
Capacity (kg or t) Code GRADE Code GRADE
Single speed Dual speed ISO ASME FEM Dual speed ISO ASME FEM
125 ER2-001H ER2-001HD
M5 H4 2m
ER2-001IH
M6 H4 3m
250 ER2-003S ER2-003SD ER2-003IS
500 ER2-005L ER2-005LD ER2-005IL
ER2-005S ER2-005SD ER2-005IS
1ER2-010L ER2-010IL/LD
ER2-010S ER2-010IS/SD
1.5 ER2-015S ER2-015IS/SD
2ER2-020L ER2-020IL/LD
M4 H4 1Am
ER2-020S ER2-020IS/SD
2.5 ER2-025S ER2-025IS/SD
3 ER2-030S ER2-030IS/SD
5 ER2-050S ER2-050IS/SD
* Grade
* For 125kg - 500kg dual speed VFD type equipped with friction clutch with mechanical brake, the grade is ISO M5 and
FEM 2m.

17
1
Product Specication and Operational Environment
Standard Specication
●ISO
ISO 4301 specifies the total operating hour (service life) of gears and bearings according to the loading status. For
example, the total operating hour (service life) of the mechanism when it is constantly applied with the capacity is 1,600
hours for M5. The total operating hour is 6,300 hours when operated with a medium load.
Loading status*Total operating hour h
800 1600 3200 6300 12500 25000
Light M4 M5 M6
Medium M4 M5 M6
Heavy M4 M5 M6
Ultra heavy M4 M5 M6
* Rate of loading
Light : A case where the capacity is rarely applied. Usually the hoist is used with a light load.
Medium: A case where the capacity is applied considerably frequently. Usually the hoist is used with a medium load.
Heavy : A case where the capacity is applied considerably frequently. Usually the hoist is used with a heavy load.
Ultra heavy : A case where the capacity is applied constantly.
●ASME HST
Hoist duty class Typical areas of application
Operation time ratings at K=0.65
Unlformly distributed
work periods
Infrequent
work periods
Max. on
time, min / hr
Max. No.
starts / hr
Max. on time from
cold start, min
Max. No.
of starts
H2
Light machine shop fabricating, service,and
maintenance; loads and utilization randomly
distributed; capacitys infrequently handled.
7.6 (12.5%) 75 15 100
H3
General machine shop fabricating, assembly,
storage, and warehousing; loads and utilization
randomly distributed.
15 (25%) 150 30 200
H4
High volume handing in steel warehouses,
machine shops, fabricationg plants and mills,
and foundries; manual or automatic cycling
operations in heat treating and plating; loads at
or near capacity frequently handled.
30 (50%) 300 30 300
* The grade symbols are identical to those of ASME HST-1M. (Performance standard for Electric Chain Hoist)
Relation between ISO-and FEM-Denominations
1 Dm 1 Cm 1 Bm 1 Am 2 m 3 m 4 m 5 m
M 1 M 2 M 3 M 4 M 5 M 6 M 7 M 8
Load
spectrum
Cubic
mean value
Class of operation time
V0.06 V0.02 V0.25 V0.5 V1 V2 V3 V4 V5
T0 T1 T2 T3 T4 T5 T6 T7 T8
Average operation time per day in hours
0.12 0.25 0.5 1 2 4 8 16 >16
1 L1 K 0.50 – – 1 Dm 1 Cm 1 Bm 1 Am 2 m 3 m 4 m
2 L2 0.50<K 0.63 – 1 Dm 1 Cm 1 Bm 1 Am 2 m 3 m 4 m 5 m
3 L3 0.63<K 0.80 1 Dm 1 Cm 1 Bm 1 Am 2 m 3 m 4 m 5 m –
4 L4 0.80<K 1.00 1 Cm 1 Bm 1 Am 2 m 3 m 4 m 5 m – –
Class of
operating
time
Average
operating time
per day
(in hours)
Calculated total
operating time
(in hours)
V0.06 T0 0.12 200
V0.12 T1 0.25 400
V0.25 T2 0.5 800
V0.5 T3 1 1,600
V1 T4 2 3,200
V2 T5 4 6,300
V3 T6 8 12,500
V4 T7 16 25,000
V5 T8 >16 50,000
●FEM
* The grade symbols are identical to those of FEM 9.511.
(Rules for Design of Serial Lifting Equipment: Classification of Mechanisms)
(to be continued)

18
Chapter 2 Inspection
1
■Operational Environment
Ambient temperature : -20°C to +40°C
Gradient of rail : No gradient in travel rail (for the hoist with trolley)
Ambient humidity : 85 % or less (no condensation)
Explosion-proof construction : Not applicable to the work environment with explosive gases or explosive vapor
Non-conforming environment : Places exposed to organic solvents
: Places with high levels of general or combustible dust in the air
: Places with high levels of acid or salt in the air
: Places where oils are scattered or attached
NOTE
When installing the electric chain hoist outdoors or to the place where the hoist is exposed to direct rain, wind and snow, shade
the hoist with roof to protect it from rain, wind and snow.
Product Specication and Operational Environment
Operational Environment
Product Specification and Operational Environment (continued)

19
1
How to Use
•Do not use the Hook without a Hook Latch or damaged Hook.
•Do not use the Load Chain with heavy elongation, abrasion or deformation.
•Do not cut, extend, or weld the Load Chain.
•Do not use the Load Chain with the Bottom Hook without smooth motion.
•Do not use the Load Chain when its brake does not function securely even without load, or when the stopping
distance is too long.
•Do not use the product if it moves oppositely to the direction indicated on the push button switch.
Failure to comply with these instructions may result in death or serious injury.
•Carry out daily inspection before operation.
(When any abnormality was found during inspection, turn off the power, indicate “FAILURE" and ask the maintenance engineer
for repair.)
•Check the slinging devices for no abnormality.
Failure to comply with these instructions may result in death or serious injury.
Mandatory
CAUTION
ER2 Series Electric Chain Hoist has two models: single speed model and dual speed VFD model. Other than them, such
products are provided that can travel/traverse when combined with a trolley or a crane. Their push button switches for
operation differ in the size and the operating method. Check the product model of the hoist and use it properly.
Prohibited
•Do not use the product with an illegible nameplate or warning label affixed to the body.
Failure to this instruction may result in the injury or the property damage.
•When using the product for the first time, affix the labels indicating East, West, North and South on the push button
switches.
•Check the contents of the work and make sure that the electric chain hoist has proper performance for the load and
lift.
•Check the contents of the work and operate the electric chain hoist at a place enabling to look out the operating area
without hindrance.
•When looking out the operating area is difficult, arrange the monitor near the place for safety.
•Operate the electric chain hoist at a place with firm foothold without danger of falling, stumbling, slipping or over
turning.
•Before moving the load, warn all the surrounding people.
•Even if the crane or the electric chain hoist is permanently installed and used for the same purpose repeatedly, check
the contents of the work and make sure that the work does not exceed the capacity on each occasion.
•Appoint the maintenance engineer or competent personnel among the qualified personnel for operation of cranes
and electric chain hoists. Indicate the name of the personnel on a place with legibility.
•The maintenance engineers shall check the result of daily inspection.
•When informed of abnormality of the electric chain hoist, the maintenance engineers shall take immediately any
necessary measures such as prohibition of use and repair.
•When carrying out inspection and repair, secure the environment for safe work without electric shock and falling.
Failure to comply with these instructions may result in bodily injury or property damage.
Mandatory
Prohibited
How to Use
(to be continued)
DANGER

20
Chapter 2 Inspection
1
■How to Operate the Push Button Switches
●Lift/Lower Button
●Emergency Stop Button (VFD Reset Button)
●Operation Button
1) Press the Emergency Stop Button deeply when carrying out an emergency stop or VFD
reset.
•The button is locked at the pressed end.
2) Turn the Emergency Stop Button clockwise to cancel the lock.
•Press-locked button returns to the original position.
* When the electric chain hoist is not used, press the Emergency Stop Button deeply to the end.
Single Speed Model Dual Speed VFD Model
1) Press button to lift the
load.
•The electric chain hoist stops
when the button is released.
1) Press button to lift the load.
2) When lifting the load at high speed, press the
button further to the end.
•The electric chain hoist stops when the button is
released.
1) Press button to lower the
load.
•The electric chain hoist stops
when the button is released.
1) Press button to lower the load.
2) When lowering the load at high speed, press the
button further to the end.
•The electric chain hoist stops when the button is
released.
•Do not hang the Push Button Switch Cord on other object, or pull the cord strongly.
•Do not use the Push Button Switch if its button does not operate smoothly.
•Do not bundle or tie the cord for the adjustment of its length.
Failure to comply with this instruction causes bodily injury or loss of property.
CAUTION
•When taking hand off the Push Button Switch after operation, do not throw it. Be careful not to hit other worker
with the Push Button Switch.
•When starting operation of the hoist after stopping the hoist by pushing the Emergency Stop Button, be sure to
confirm there are no hazards around the workplace before releasing the lock of the Emergency Stop Button and
starting operation.
Failure to comply with this instruction causes bodily injury or loss of property.
Mandatory
Prohibited
■3-Push Button Switch Set
3-Push Button Switch Set is equipped with a lock type emergency stop button (VFD reset button) and lift/lower push
buttons. One-step push button switch or two-step push button switch is mounted as Lift/lower push button switches in
accordance with the specification of single speed or dual speed VFD specification. Refer to the operation method of the
corresponding specification.
How to use (continued)
NOTE
If the Electric chain hoist is tripped due to overheat of the VFD, the VFD cannot be reset soon after the trip. Reset the VFD after a while.
How to UseHow to Operate the Push Button Switches